There's a common refrain on this site where people ask, "why should radio bother to do this when you can get it somewhere else?" Usually 'somewhere else' means online, on your phone, traffic on your car's navigation screen, etc,, but your question here is another variant of that.
I think the answer is, why should radio -- or in this case, this particular station -- give up and defer to its rivals? Each outlet provides a different experience even when offering similar products. The consumer doesn't need to make a choice between one or the other, they can always choose multiple ways to get the content they want, making them all relevant.
In this case, VOA, like all state media broadcasters, exists to spread the nation's culture and point of view beyond its own borders. This radio station allows the American government to present American culture to overseas listeners the way it wants to -- which is its mission -- as opposed to the local stations in those countries that don't present an American point of view despite playing Western music in their mix.
I would say that this stream sounds simple as opposed to incredibly cheap. Sure, those of us who know the radio business know it's voice tracked and lacks a flashy jingle package, so we understand where the cost savings are coming from. But the host sounds professional and his content is well-suited for a foreign audience that may not be as immersed in the day-to-day American pop culture happenings as those who live here.